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- W2368366786 abstract "In order to study microstructure,high temperature oxidation resistance of Fe-based,Cr_3C_2/Fe composite coating,as well as phase structure evolution of Cr_3C_2/Fe composite coating,Fe-based alloy and Cr_3C_2/Fe-based alloy composite coatings were obtained on Q235 whose composition is similar with Fe-based alloy with a 5kW CO_2 laser.Then relevant test data were obtained and theoretical analysis was conducted.Results show that:the Fe-based alloy coating is mainly composed of phase α-Fe,Cr_(23)C_6,as well as the body-centered cubic α-Fe solid solution,etc.;the cladding layer mainly crystallizes in sub-eutectic crystallization way,there exists lamellar eutectic crystal organization between the primary solid solution.The main composition of Cr_3C_2/Fe-based alloy composite coating are γ-Fe,α-Fe,Cr_(23)C_6,Cr_3C_2,Cr_7C_3 and so on.The Fe-based alloy coating is composed of well-developed α-Fe dendrites and the eutectic structure during the composition,Cr_3C_2/Fe-based alloy coating typical organizations are equiaxed grains,as well as small eutectic.Cr_3C_2 pairs play a major role in promoting the organization from dendrite to equiaxed transformation;Cr_3C_2 can significantly increase the micro-hardness,high temperature oxidation resistance and other physical properties of Fe-based alloy coating.The results have certain assistance for subsequent Fe-based alloy laser cladding and laser surface modification." @default.
- W2368366786 created "2016-06-24" @default.
- W2368366786 creator A5013194814 @default.
- W2368366786 date "2010-01-01" @default.
- W2368366786 modified "2023-09-25" @default.
- W2368366786 title "Effect of Cr_3C_2 on microstructure and properties of Fe-based alloy coating by laser cladding" @default.
- W2368366786 hasPublicationYear "2010" @default.
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